KEY: "-" = Data not available, or no activity, or a value of zero; "0" = Value too small to report.

NOTES:
Numbers may not add to totals due to rounding.

Numbers in parenthesis are negative values. The negative expenditure values are a result of offsetting collections. Offsetting collections are federal receipts from the public resulting from business-type activities, or transfers from other federal accounts. Such receipts are deducted from gross outlays of a receiving program in the budget of the U.S. Government, instead of combining them with federal receipts. Thus, the Office of Management and Budget (OMB) reports negative expenditures for some federal programs whenever offsetting collections exceed their eventual budget. This should be taken into consideration when examining total expenditures for specific federal programs.

The Bureau of Transportation Statistics and Surface Transportation Board are new additions to the table. The data in this table are presented in chained 2000 dollars, while the data in the previous report were provided in chained 1996 dollars. Moreover, the numbers for some agencies in this table may be different from those in the earlier report, because of revisions made to the historical data series.

SOURCES: The following sources are used except for NASA and U.S. Army Corps of Engineers:
U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, D.C.: Annual publication), Table FA-5.
Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government - Appendix (Washington, D.C.: Annual issues).
_______. Budget of the United States Government FY 2005 - Public Budget Database (Washington, D.C.), Outlays available at: http://www.gpoaccess.gov/usbudget/index.html, as of May 2004.

National Aeronautics and Space Administration (NASA): NASA, Aeronautics and Space Report of the President (Washington, D.C.: Annual issues), Appendix E-3, available at: http://www.hq.nasa.gov/hq/nasrepts.htm, as of July 2003.U.S. Army Corps of Engineers: U.S. Army Corps of Engineers, personal communication, as of July 2003.

Chain-Type Price Index:
U.S. Department of Commerce, Bureau of Economic Analysis, National Income and Product Accounts Tables (Washington D.C.), Table 3.9.4, available at: http://www.bea.doc.gov/bea/dn/nipaweb/, as of May 2004.